6H6E

PTC3 holotoxin complex from Photorhabdus luminecens in prepore state (TcdA1, TcdB2, TccC3)


ELECTRON MICROSCOPY

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1VW1 
experimental modelPDB 4O9X 
Sample
PTC3 holotoxin complex in prepore state (5 x TcdA1, 1 x TcdB2, 1 x TccC3)
Sample Components
TcdA1
TcdB2/TccC3
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentGATAN CRYOPLUNGE 3
Cryogen NameETHANE
Sample Vitrification Detailsblot 3 sec before plunging
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles89148
Reported Resolution (Å)3.95
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (1VW1, 4O9X, 1VW1, 1VW1, 1VW1, 1VW1)
Refinement SpaceREAL
Refinement ProtocolOTHER
Refinement TargetModel to Map FSC
Overall B Value68.03
Fitting Procedure
Details
Data Acquisition
Detector TypeFEI FALCON II (4k x 4k)
Electron Dose (electrons/Å**2)2.2
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONEMAN2
IMAGE ACQUISITIONEPU
CTF CORRECTIONSPHIRE
MODEL FITTINGUCSF Chimera1.12
MODEL FITTINGRosetta
INITIAL EULER ASSIGNMENTSPHIRE
FINAL EULER ASSIGNMENTSPHIRE
CLASSIFICATIONSPHIRE
RECONSTRUCTIONSPHIRE
MODEL REFINEMENTRosetta
MODEL REFINEMENTNAMD2.12
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION205336